[INFO] cloning repository https://github.com/jakequade/rust-chat-websockets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakequade/rust-chat-websockets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakequade%2Frust-chat-websockets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakequade%2Frust-chat-websockets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 957741583d75d54f89b8076588df7f252c9f2194
[INFO] checking jakequade/rust-chat-websockets against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakequade%2Frust-chat-websockets" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakequade/rust-chat-websockets on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakequade/rust-chat-websockets
[INFO] finished tweaking git repo https://github.com/jakequade/rust-chat-websockets
[INFO] tweaked toml for git repo https://github.com/jakequade/rust-chat-websockets written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jakequade/rust-chat-websockets already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bf1f8b8132b91fb5356e99f5eb0c153d6d719ecbac333d7637e896253f3829d
[INFO] running `Command { std: "docker" "start" "-a" "7bf1f8b8132b91fb5356e99f5eb0c153d6d719ecbac333d7637e896253f3829d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bf1f8b8132b91fb5356e99f5eb0c153d6d719ecbac333d7637e896253f3829d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf1f8b8132b91fb5356e99f5eb0c153d6d719ecbac333d7637e896253f3829d", kill_on_drop: false }`
[INFO] [stdout] 7bf1f8b8132b91fb5356e99f5eb0c153d6d719ecbac333d7637e896253f3829d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59573ab80b4ad083e3cf7a211e43a3cdb0048238fd1156f5a299a683e35d8ce9
[INFO] running `Command { std: "docker" "start" "-a" "59573ab80b4ad083e3cf7a211e43a3cdb0048238fd1156f5a299a683e35d8ce9", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/client.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 if (self.outgoing.len() > 0) {
[INFO] [stdout]     |                    ^                       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 117 -                 if (self.outgoing.len() > 0) {
[INFO] [stdout] 117 +                 if self.outgoing.len() > 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/frame.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/client.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |                 if (self.outgoing.len() > 0) {
[INFO] [stdout]     |                    ^                       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 117 -                 if (self.outgoing.len() > 0) {
[INFO] [stdout] 117 +                 if self.outgoing.len() > 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/frame.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/client.rs:82:25
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Ok(Some(len)) => {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/client.rs:82:25
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Ok(Some(len)) => {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `HandshakeResponse` is never constructed
[INFO] [stdout]   --> src/client.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum ClientState {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 52 |     AwaitingHandshake(RefCell<Parser<HttpParser>>),
[INFO] [stdout] 53 |     HandshakeResponse,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_handshake` is never used
[INFO] [stdout]   --> src/client.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl WebSocketClient {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 70 |     pub fn read_handshake(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mask` is never read
[INFO] [stdout]   --> src/frame.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct WebSocketFrame {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 80 |     header: WebSocketFrameHeader,
[INFO] [stdout] 81 |     mask: Option<[u8; 4]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebSocketFrame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_opcode` is never used
[INFO] [stdout]    --> src/frame.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl WebSocketFrame {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn get_opcode(&self) -> OpCode {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `HandshakeResponse` is never constructed
[INFO] [stdout]   --> src/client.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum ClientState {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 52 |     AwaitingHandshake(RefCell<Parser<HttpParser>>),
[INFO] [stdout] 53 |     HandshakeResponse,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_handshake` is never used
[INFO] [stdout]   --> src/client.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl WebSocketClient {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 70 |     pub fn read_handshake(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mask` is never read
[INFO] [stdout]   --> src/frame.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct WebSocketFrame {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 80 |     header: WebSocketFrameHeader,
[INFO] [stdout] 81 |     mask: Option<[u8; 4]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebSocketFrame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_opcode` is never used
[INFO] [stdout]    --> src/frame.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl WebSocketFrame {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn get_opcode(&self) -> OpCode {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "59573ab80b4ad083e3cf7a211e43a3cdb0048238fd1156f5a299a683e35d8ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59573ab80b4ad083e3cf7a211e43a3cdb0048238fd1156f5a299a683e35d8ce9", kill_on_drop: false }`
[INFO] [stdout] 59573ab80b4ad083e3cf7a211e43a3cdb0048238fd1156f5a299a683e35d8ce9